The Corbie (Corvus corax), also kent as the Northren Raen or the Common Raen, is a lairge, aw-black passerine bird. Foond athort the northren hemisphere, it is the maist widely distributit o aw corvids. Thare are at least aicht subspecies wi little variation in appearance—although recent research haes demonstratit signeeficant genetic differences amang populations frae various regions. It is ane o the twa lairgest corvids, alangside the Thick-billed Raen, an is possibly the hiviest passerine bird; at maturity, the Common Raen averages 63 centimetres (25 inches) in length an 1.2 kilograms (2.6 pounds) in mass. Common Ravens can live up tae 21 years in the wild,[2] a lifespan exceedit amang passerines bi only a few Australasie species such as the Satin Bowerbird[3] an probably the lyrebirds. Young birds mey travel in flocks but later mate for life, wi each matit pair defendin a territory.

The Common Raen haes coexistit wi humans for thoosands o years an in some auries hae been so numerous that thay are considered a pest. Pairt o its success comes frae its omnivorous diet; Common Ravens are extremely versatile an opportunistic in findin soorces o nutrition, feedin on carrion, insects, cereal grains, berries, fruit, smaa ainimals, an fuid waste.

Some notable feats o problem-solvin hae been observed in the species, leadin tae the belief that it is heichly intelligent. Ower the centuries, it haes been the subject o meethology, folklore, airt, an leeteratur. In mony indigenous culturs, includin those o Scandinavie, auncient Ireland an Wales, Bhutan, the northwast coast o North Americae, an Siberie an northeast Asie, the Common Raen haes been revered as a spiritual figure or god.[4]